@misc{indiciaed3d9cb7faa86,
  title = {Population ecology and harvest of the American black duck: a review},
  author = {D. H. Rusch and C.D. Ankney and H. Boyd and J. R. Longcore and Frank Montalbano and J.K. Ringelman and Vernon D. Stotts},
  year = {1989},
  url = {https://pubs.usgs.gov/publication/5222576},
  note = {Source identifier: 5222576}
}